Well-tubing elevator



lll. S'. A., have invented certain new and ,use lul llmprovementsin 1llVell-'llubing Elevators g and ll do declare the tollowing vto be a lull, clear, Vand exact description ot the invention, such as will enable others skilled inthe art to which it appertains to make and use the p same, reference being had to the accom elevator; that is. to an elevator for pulling and lowering well tubing and/like casings'.

Elie device is not primarily intended as a casing elevator although it may be used 'for pulling 'casing of :smal intended more particularly for handlin tubing or pipe through which oil 4is pu trom the well, the priinarj7 provide an inexpensive, eas `elevator' andto this lend the sists in certain parts and combinations ot parts, all ot whichmwill be specifically referred to hereinafter, referencefbeing had j to the accompanying,drawings, in which 3o constructed in accordance with my invenv"caesaer: aan

LL, on Kansas errr, inissoiini.

WELL-TUBING l rilievi/iron.

Application filed .Tune 5", 1923. Serial No. 644,355?.

i .To all whom zt ifi/ry concern:

Be it known that l, G

zen ot Germany, residing at Kansas City,'in

the county ol Jackson an ing drawings, and tothe marked thereon, speciication-` j 'llhis invention relate Fig. l is a perspective tion..

ll`ig.2 `is a side elevational view of the SEtlIle.

the` elevator, and

which' torni a par llig. 3 is a vertical, sectional view through itoi'ieii hiinLL, a citi j 1s d State ot lllissouil'i,

engage transverse sockets and26 in the ja w members 27 and 28. Each jaw member substantially semi-circular and each socket gs or projections 29 and 30, which straddle j the arms'21 and 22 so as to hold the arms and jaws in operative positions. be apparent by reference to Figs. l and 5.

The jaw members may be held in proper osition with respect to one another by the panyvpin 3l which passes through the lugs 82 and figures-ol reference 33 so that the jaw-engaging faces will at all s to a well tubing ni ler diameters.

object being to to ily constructed invention con` m view of an velevator lor one rotor arm being shown in section.

Fig. 5 is a disassociat y of one ol the jaw memloe rocker armn 'flieinvention inay include a trame/con? sisting of sidefbars 'l .3. endl.

@n the shafts 3 and shaped links lg and li t are inverted llhaving spaced ends L with, collars l5, 16, l? and 18 through which the shafts 3 andA l entend., B collars ot the links are collarsl the rocker arms k2l and 22.

arms extend upwardly they have transverse 'hea etween the gl i shaft 3 and having l can be taken oil by opening the jaws 'throu the connection the-medium ot perspective View gener and its associated been i vand `given lllo. 1,446,568, -so l do not, la;7

any Smil 2 and @11d SllJS rocking levers or self-seating jaws in .this application, the invention consisting rather and v4inthe simplified construction which enables lGlCl in pllCS by me to produce a" less expensive elevator than can be produced under my prior patent.

tot this times be in substantially Vvertical planes.

` The jaws may be opened by a link ineclia- 70 sin' comprising an elbow lever Sel on the g link levers 35 `and 36 connected to the respective jaws.

is provided at its lower portion with lateral The-important yteatiire ol this invention @y Hll. engage. Removable liners 37 and 38 may be prorlhe jaws may be opened through the edium of the elbow lever 34 and links 35 ed or raised, dependent upon Vwhether the tubing is t-obe lowered or pulledlh When the tubing is in place, the elevator o'h. the elbow lever 34e, in elevator for oil well casing of the same al type of the present construction has patented to me on February 27, 1923 claim to any broad embodiment of links,t

etters Patent is:

l. ln a well tubing elevator, a frame, sine rocker arms on the respective ends of 9 and 2G of the trarne, jaws loosely mounted on the inllhe rockerV ner ends of the rocker arms, and means tor` and inwardly` and` supporting the traine.

ds 23 and 24, which 2. ln a well tubing elevator, a trame, sinis the manner ot mounting the jaws; that lt is is, providing a single lever for each jaw and g the loosely supporting the jaws so that they will inped be sell-seating upon the tube which th f .fgle 'rocker arms on the respective ends of l l l 3. Inga well tubing elevator, a frame, single rocker arms on the respective ends of i the frame, jaws loosely mounted onl the in-A ner ends of the rocker arms, means for supporting the frame, and' jaw-opening means carried by thel frame,

' "4. In a Well tubingelevator, a frame comprisingside bars and end shaftsconnected to the side' bars,'inverted U-shaped links connected to the shafts With' their ends in. spaced relation, single rocker arm'sloosely mounted on the respective shafts between the .ends of the links, and jaws loosely mounted upon the inner ends of the rocker arms.

' 5. YIn a- Well tubing elevator, a frame ycomprising side barsand end shafts connected I to the side bars, inverted U`shaped links Connected to the Ashafts with their ends in spaced relation, single 'rocker arms loosely mounted on the respective shafts between lthe ends of. the links, jaws loosely mounted upon the inner ends of the rocker arms, and f 1 jaw-opening mechanism carried by one of .the shafts.

6. In a well tubingelevator, a frame, having side bars'and end members connecting them, headed rocker levers loosely mounted on the endmembers,.and jaws having sockets into which the heads of therocker 1evers 'are received. l

`7. y In a Well tubing elevator, a frame having* side bars and end members connecting them, headed rocker levers loosely mounted on the .end members, transverse heads ony the inner ends of tbe rocker levers,`jaws having transverse recesses receivin heads, outwardly projecting lugs carried by the jaws overlapping the sides of the rocker levers, and means for supporting the frame.-

In testimony whereofl affix my signature.

- GEORGE KRELL.

the i 

